package d4_map;

import java.util.HashMap;
import java.util.Map;

public class t3 {
    public static void main(String[] args) {
        Map<Student, String> map = new HashMap<Student, String>();
        map.put(new Student("发放",12,444.1),"dad");
        map.put(new Student("发放",12,444.1),"dad");
        System.out.println(map);
    }
}
